WORKPRO HSS Step Drill Bit Set delivers professional-grade performance for versatile drilling applications. High-speed steel construction with titanium coating provides exceptional durability and maintains sharp edges through repeated use on plastic, aluminum, copper, and stainless steel. The two-flute design enables faster, smoother cutting with improved accuracy while containing metal debris for enhanced safety. Each bit features a quick-change 1/4" hex shank (6.35mm) that fits seamlessly into power drivers, drills, and press drills for convenient switching between tasks. This 3-piece set arrives in an organized carrying bag, making storage and transport effortless. Ideal for professionals and DIY enthusiasts who demand reliable performance and portability.
- Bit #1 (5 steps): 4mm, 6mm, 8mm, 10mm, 12mm;
- Bit #2 (9 steps): 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm;
- Bit #3 (15 steps): 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm
